BIO230H1 Lecture Notes - Lecture 16: Zona Pellucida, Basal Lamina, Stratum Basale
42
BIO230H1 Full Course Notes
Verified Note
42 documents
Document Summary
Morphogenesis the generation of tissue shapes that form organs and bodies. Cell differentiation the generation of different cell types in tissues. Model organisms used to study multicellular development: cell proliferation, cell specialization, cell interaction, cell movement. ** in adults, multicellular development occurs continuously from stem cells ** Ie. development isn"t just happening in the embryonic stage. Epidermis epithelial tissue of the skin. Basal cell layer stem cells of the skin. When in contact with the basal lamina, they will divide; when they lose contact, they will differentiate. Mammary gland epithelia adults can also initiate new developmental processes. Standard protein secretion (er & golgi) milk proteins. Starting with a sperm & an egg to a (???) Maternal and paternal pronuclei will fuse together. Polar body one of the products of meiosis (generation of the egg) gets destroyed. Morula (8 cells) little mulberry (in latin) Formation of the blastocyst (blob of cells) 4 days.
